diff --git a/1-introduction/introduction.tex b/1-introduction/introduction.tex
index 1fb79ec..8ea4d5d 100644
--- a/1-introduction/introduction.tex
+++ b/1-introduction/introduction.tex
@@ -133,20 +133,19 @@ Because the visuo-haptic \VE is displayed in real time and aligned with the \RE,
 \fig{interaction-loop}{The interaction loop between a user and a visuo-haptic \AE as proposed in this thesis.}[
   A user interacts with the visual (in blue) and haptic (in red) \VEs through a virtual hand (in purple) interaction technique that tracks real hand movements and simulates contact with virtual objects.
   The visual and haptic \VEs are rendered back using an \AR headset and wearable haptics, and are perceived by the user to be registered and co-localized with the \RE (in gray).
-  %\protect\footnotemark
+  \protect\footnotemark
 ]
 
 In this context, we focus on two main research challenges:
 \textbf{(I) providing plausible and coherent visuo-haptic augmentations}, and
 \textbf{(II) enabling effective manipulation of the \AE}.
 Each of these challenges also raises numerous design, technical, perceptual and user experience issues specific to wearable haptics and \AR headsets.
-
-%\footnotetext{%
-%  The icons are \href{https://creativecommons.org/licenses/by/3.0/}{CC BY} licensed:
-%  \enquote{\href{https://thenounproject.com/icon/finger-pointing-4230346/}{finger pointing}} by \href{https://thenounproject.com/creator/leremy/}{Gan Khoon Lay},
-%  \enquote{\href{https://thenounproject.com/icon/hololens-1499195/}{HoloLens}} by \href{https://thenounproject.com/creator/daniel2021/}{Daniel Falk}, and
-%  \enquote{\href{https://thenounproject.com/icon/vibration-6478365/}{vibrations}} by \href{https://thenounproject.com/creator/iconbunny/}{Iconbunny}.
-%}
+\footnotetext{%
+  The icons are \href{https://creativecommons.org/licenses/by/3.0/}{CC BY} licensed:
+  \enquote{\href{https://thenounproject.com/icon/finger-pointing-4230346/}{finger pointing}} by \href{https://thenounproject.com/creator/leremy/}{Gan Khoon Lay},
+  \enquote{\href{https://thenounproject.com/icon/hololens-1499195/}{HoloLens}} by \href{https://thenounproject.com/creator/daniel2021/}{Daniel Falk}, and
+  \enquote{\href{https://thenounproject.com/icon/vibration-6478365/}{vibrations}} by \href{https://thenounproject.com/creator/iconbunny/}{Iconbunny}.
+}
 
 \subsectionstarbookmark{Challenge I: Providing Plausible and Coherent Visuo-Haptic Augmentations}